WHAT IS CAUSING MY DRIVEWAY TO TURN BLACK AND HOW DO I CLEAN IT?

What is causing your driveway and concrete surfaces to gradually turn black?

When you see black spots on a concrete driveway, it's most likely a combination of mold, bacteria and algae. Mold is a type of fungus, while algae is a form of plant life. Black algae appears on your driveway as dark grey or black spots and smears. Black algae is a type of bacteria that thrives in moist areas, in both the sun and shade. From a distance, it looks like ordinary garden dirt, but you can’t wash it away with the hose. Black algae can turn any area it touches into a grimy, soot-colored mess!

Most driveways are unsealed, so moisture can penetrate the surface and linger for hours after a rain. Overspray from sprinklers also adds moisture to the concrete. Moist, shaded areas can be the most troublesome because they provide the ideal environment for mold and mildew.

How does Keaton's Pressure Washing, LLC remove algae, mold and mildew from your North Georgia driveway?

While pressure washing can improve the appearance of concrete, it cannot reach beyond the surface. That is why we see lines and swirls after a driveway has been pressure washed. In order to completely eliminate the mold, mildew and bacteria that is below the surface of the concrete, we post treat with a soft wash blend of algaecide and other chemicals. The soft wash solution will not only make your driveway and walkways much brighter, but it will also help them stay cleaner for a longer period of time.

Along with our driveway cleaning service, we also offer driveway sealing which seals the surface of the concrete from moisture, dirt, bacteria, mold and algae. Our concrete and paver sealing includes 2 coats of a water based sealer. When you seal your concrete and pavers, you inhibit the moisture from penetrating the surface, therefore reducing the chances of redevelopment of mold and mildew. A sealed surface also greatly reduces staining from grease, oil, red clay and other substances.

If your Dawsonville, GA area home needs a driveway cleaning, house washing, roof cleaning or any of the other cleaning services that we offer, let us know and we will come to your home and give you a free estimate. And, in case you haven't visited our Warranty page, our roof wash comes with a 1-year "Algae Free" warranty, and most of our services come with a 6-month "Peace of Mind" warranty!

Location: Dawsonville, GA